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communications net architecture : 34 phrases in 12 subjects |
Air defense | 2 |
Aviation | 4 |
Business | 2 |
Computer networks | 2 |
Earth sciences | 1 |
Electronics | 2 |
Information technology | 1 |
Management | 2 |
Securities | 1 |
Space | 11 |
Telecommunications | 5 |
United Nations | 1 |